Build time: 2014-04-29 09:24:31 UTC Build number: none Revision: a831fa866d46cbee94e61a09af15f9dd95987421
Groovy: 1.8.6 Ant: Apache Ant(TM) version 1.9.3 compiled on December 23 2013 Ivy: 2.2.0 JVM: 1.7.0_60 (Oracle Corporation 24.60-b09) OS: Linux 2.6.32-431.el6.x86_64 amd64 输出结果中显示了我们安装的 Gradle 的版本以及本地环境配置信息，证明安装成功。 4. 构建 Eureka 服务器 从 github 获取 Eureka 源码： # git clone https://github.com/Netflix/eureka.git 在存放源码的路径下执行以下命令以构建 Eureka 服务器： # cd eureka/ # ./gradlew clean build 成功后在 ./eureka-server/build/libs/ 目录下找到 war 包。 5. 安装 tomcat 安装 Eureka 服务器要求事先安装好了 Tomcat。去 http://tomcat.apache.org/ 下载你想要的版本，比如作者下载的是 apache-tomcat-6.0.41.tar.gz，大小 7 MB。 # tar zxvf apache-tomcat-6.0.41.tar.gz # cp -r apache-tomcat-6.0.41 /usr/local/tomcat # /usr/local/tomcat/bin/startup.sh 其他电脑客户端访问 http://serverIP:8080，如果小猫没出来，在服务器执行 # curl http://localhost:8080 有 Tomcat 管理界面 HTML 文字输出，说明没有开放服务器防火墙 8080 端口，开放该端口或者直接关掉防火墙。 6. 部署 Eureka server # /usr/local/tomcat/bin/shutdown.sh # cp eureka-server-1.1.134.war /usr/local/tomcat/webapps/eureka.war # /usr/local/tomcat/bin/startup.sh Tomcat 启动以后，其他电脑客户端访问 http://serverIP:8080/eureka，404。查看 /usr/local/tomcat/logs/catalina.out，发现有警告信息： 2014-07-03 09:47:00,614 WARN com.netflix.config.util.ConfigurationUtils:165 [main] [loadFromPropertiesFile] Unable to load properties file org.apache.commons.configuration.ConfigurationException: Unable to load the configuration from the URL file:/usr/local/tomcat/webapps/eureka/WEB-INF/classes/eureka-${environment}-${region}.properties at org.apache.commons.configuration.DefaultFileSystem.getInputStream(DefaultFileSystem.java:84) at org.apache.commons.configuration.AbstractFileConfiguration.load(AbstractFileConfiguration.java:323) at org.apache.commons.configuration.AbstractFileConfiguration.load(AbstractFileConfiguration.java:234) at org.apache.commons.configuration.AbstractFileConfiguration.<init>(AbstractFileConfiguration.java:197) at org.apache.commons.configuration.PropertiesConfiguration.<init>(PropertiesConfiguration.java:285) at com.netflix.config.util.OverridingPropertiesConfiguration.<init>(ConfigurationUtils.java:267) at com.netflix.config.util.ConfigurationUtils.loadFromPropertiesFile(ConfigurationUtils.java:160) at com.netflix.config.util.ConfigurationUtils.getConfigFromPropertiesFile(ConfigurationUtils.java:196) at com.netflix.config.util.ConfigurationUtils.getPropertiesFromFile(ConfigurationUtils.java:214) at com.netflix.config.ConfigurationManager.getPropertiesFromFile(ConfigurationManager.java:431) at com.netflix.config.ConfigurationManager.loadCascadedProperties(ConfigurationManager.java:288) at com.netflix.config.ConfigurationManager.loadCascadedPropertiesFromResources(ConfigurationManager.java:268) at com.netflix.eureka.DefaultEurekaServerConfig.init(DefaultEurekaServerConfig.java:93) at com.netflix.eureka.DefaultEurekaServerConfig.<init>(DefaultEurekaServerConfig.java:75) at com.netflix.eureka.EurekaBootStrap.initEurekaEnvironment(EurekaBootStrap.java:130) at com.netflix.eureka.EurekaBootStrap.contextInitialized(EurekaBootStrap.java:88) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4210) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4709) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065) at org.apache.catalina.core.StandardHost.start(StandardHost.java:822) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused by: java.io.FileNotFoundException: /usr/local/tomcat/webapps/eureka/WEB-INF/classes/eureka-${environment}-${region}.properties (No such file or directory) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(FileInputStream.java:146) at java.io.FileInputStream.<init>(FileInputStream.java:101) at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:90) at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:188) at java.net.URL.openStream(URL.java:1037) at org.apache.commons.configuration.DefaultFileSystem.getInputStream(DefaultFileSystem.java:80) ... 39 more 这是找不到 eureka-${environment}-${region}.properties 配置文件 # /usr/local/tomcat/bin/shutdown.sh # vi /usr/local/tomcat/webapps/eureka/WEB-INF/classes/eureka-server.properties 将最后一行 @next=eureka-${environment}-${region}.properties 去掉。 此外，/usr/local/tomcat/logs/catalina.out 在上述警告后边还有以下错误： 2014-07-03 09:47:01,920 ERROR com.netflix.discovery.DiscoveryClient:1015 [main] [makeRemoteCall] Can‘t get a response from http://localhost/eureka/v2/apps/ Can‘t contact any eureka nodes - possibly a security group issue? com.sun.jersey.api.client.ClientHandlerException: org.apache.http.conn.HttpHostConnectException: Connection to http://localhost refused at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:184) at com.sun.jersey.api.client.filter.GZIPContentEncodingFilter.handle(GZIPContentEncodingFilter.java:120) at com.sun.jersey.api.client.Client.handle(Client.java:648) at com.sun.jersey.api.client.WebResource.handle(WebResource.java:670) at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) at com.sun.jersey.api.client.WebResource$Builder.get(WebResource.java:503) at com.netflix.discovery.DiscoveryClient.getUrl(DiscoveryClient.java:1389) at com.netflix.discovery.DiscoveryClient.makeRemoteCall(DiscoveryClient.java:960) at com.netflix.discovery.DiscoveryClient.makeRemoteCall(DiscoveryClient.java:909) at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:757) at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:653) at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:237) at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:169) at com.netflix.discovery.DiscoveryManager.initComponent(DiscoveryManager.java:84) at com.netflix.eureka.EurekaBootStrap.initEurekaEnvironment(EurekaBootStrap.java:159) at com.netflix.eureka.EurekaBootStrap.contextInitialized(EurekaBootStrap.java:88) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4210) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4709) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065) at org.apache.catalina.core.StandardHost.start(StandardHost.java:822) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused by: org.apache.http.conn.HttpHostConnectException: Connection to http://localhost refused at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190) at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:151) at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:125) at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:640) at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:827) at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:170) ... 39 more Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:579) at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:127) at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180) ... 46 more 这是 Tomcat 默认端口是 8080，而 Eureka 默认为 80。本文示例暂时用 8080，所以 # vi /usr/local/tomcat/webapps/eureka/WEB-INF/classes/eureka-client.properties 将 eureka.port=80 改为 eureka.port=8080。 # vi /usr/local/tomcat/webapps/eureka/WEB-INF/classes/eureka-client-test.properties 将 eureka.serviceUrl.defaultZone=http://localhost/eureka/v2/ eureka.serviceUrl.default.defaultZone=http://localhost/eureka/v2/ 改为 eureka.serviceUrl.defaultZone=http://localhost:8080/eureka/v2/ eureka.serviceUrl.default.defaultZone=http://localhost:8080/eureka/v2/ 重启 Tomcat # /usr/local/tomcat/bin/startup.sh # tail -f /usr/local/tomcat/logs/catalina.out 或者直接查看 catalina.out，发现有以下错误： 2014-07-03 14:33:05,484 ERROR com.netflix.discovery.DiscoveryClient:1015 [main] [makeRemoteCall] Can‘t get a response from http://localhost:8080/eureka/v2/apps/ Can‘t contact any eureka nodes - possibly a security group issue? com.sun.jersey.api.client.ClientHandlerException: java.net.SocketTimeoutException: Read timed out at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:184) at com.sun.jersey.api.client.filter.GZIPContentEncodingFilter.handle(GZIPContentEncodingFilter.java:120) at com.sun.jersey.api.client.Client.handle(Client.java:648) at com.sun.jersey.api.client.WebResource.handle(WebResource.java:670) at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) at com.sun.jersey.api.client.WebResource$Builder.get(WebResource.java:503) at com.netflix.discovery.DiscoveryClient.getUrl(DiscoveryClient.java:1389) at com.netflix.discovery.DiscoveryClient.makeRemoteCall(DiscoveryClient.java:960) at com.netflix.discovery.DiscoveryClient.makeRemoteCall(DiscoveryClient.java:909) at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:757) at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:653) at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:237) at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:169) at com.netflix.discovery.DiscoveryManager.initComponent(DiscoveryManager.java:84) at com.netflix.eureka.EurekaBootStrap.initEurekaEnvironment(EurekaBootStrap.java:159) at com.netflix.eureka.EurekaBootStrap.contextInitialized(EurekaBootStrap.java:88) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4210) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4709) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065) at org.apache.catalina.core.StandardHost.start(StandardHost.java:822) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused by: java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:152) at java.net.SocketInputStream.read(SocketInputStream.java:122) at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:166) at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:90) at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:281) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:92) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:62) at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:254) at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:289) at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:252) at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:219) at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:300) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:127) at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:712) at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:517) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:827) at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:170) ... 39 more 这个正常的，启动的时候会去找其他的 server，找不到，过一会就自己启动了(这时候我们去访问 http://serverIP:8080 应该看不到那只小猫)。 等待五分钟左右，访问 http://serverIP:8080，可以看到小猫页面。访问 http://serverIP:8080/eureka/，看到以下界面： 说明 Eureka Server 部署成功。 参考资料
